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* sysdeps/generic/errno.c [! USE___THREAD]

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[HAVE_ELF && SHARED && DO_VERSIONING] (errno, _errno): Declare these
	with compat_symbol so they are not link-time visible.
	[! USE___THREAD] (__libc_errno): New alias for errno.
	* csu/Versions [!(USE_TLS && HAVE___THREAD)] (libc: GLIBC_PRIVATE):
	Add __libc_errno here.
	* inet/herrno.c [USE___THREAD]: Use this conditional
	in place of [USE_TLS && HAVE___THREAD].
	[! USE___THREAD] [HAVE_ELF && SHARED && DO_VERSIONING]
	(h_errno, _h_errno): Declare these with compat_symbol so they are not
	link-time visible.
	[! USE___THREAD] (__libc_h_errno): New alias for h_errno.
	* resolv/res_libc.c [! USE___THREAD]
	[HAVE_ELF && SHARED && DO_VERSIONING] (_res): Likewise.
	(_res): Use __attribute__ ((section (".bss"))) so we can have an alias.
	(__libc_res): Define as alias for _res.
	* resolv/Versions [!(USE_TLS && HAVE___THREAD)] (libc: GLIBC_PRIVATE):
	Add __libc_h_errno and __libc_res here.

2002-11-14  Jakub Jelinek  <jakub@redhat.com>

	* csu/Versions (errno): Move STT_TLS symbol to GLIBC_PRIVATE for now.
	* resolv/Versions (h_errno, _res): Likewise.

2002-11-14  Roland McGrath  <roland@redhat.com>
This commit is contained in:
Roland McGrath
2002-11-14 21:23:12 +00:00
parent 6c0b2972dc
commit d8b8842b04
6 changed files with 77 additions and 8 deletions
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18
resolv/res_libc.c
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@ -31,8 +31,22 @@ extern __thread struct __res_state __libc_res __attribute__ ((alias ("_res")))
attribute_hidden;
# define _res __libc_res
#else
/* The resolver state for use by single-threaded programs. */
struct __res_state _res;
/* The resolver state for use by single-threaded programs.
This differs from a plain uninitialized definition in that it doesn't
create a common definition, but a plain symbol that resides in .bss,
which can have an alias. */
struct __res_state _res __attribute__ ((section (".bss")));
/* This alias is needed by libpthread. */
strong_alias (_res, __libc_res)
/* We declare this with compat_symbol so that it's not
visible at link time. Programs must use the accessor functions. */
# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
# include <shlib-compat.h>
compat_symbol (libc, _res, _res, GLIBC_2_0);
# endif
#endif
/* This function is used to access the resolver state in